Results 21 to 30 of about 72,567 (294)

Soft corrections to inclusive deep-inelastic scattering at four loops and beyond

open access: yesJournal of High Energy Physics, 2020
We study the threshold corrections for inclusive deep-inelastic scattering (DIS) and their all-order resummation. Using recent results for the QCD form factor, related anomalous dimensions and Mellin moments of DIS structure functions at four loops we ...
Goutam Das, Sven-Olaf Moch, Andreas Vogt
doaj   +1 more source

A new approach to semi-inclusive deep-inelastic scattering with QED and QCD factorization

open access: yesJournal of High Energy Physics, 2021
We present the details of a new factorized approach to semi-inclusive deep-inelastic scattering which treats QED and QCD radiation on equal footing, and provides a systematically improvable approximation to the extraction of transverse momentum dependent
Tianbo Liu   +3 more
doaj   +1 more source

Lorentz and CPT violation in partons

open access: yesJournal of High Energy Physics, 2020
A framework is presented for the factorization of high-energy hadronic processes in the presence of Lorentz and CPT violation. The comprehensive effective field theory describing Lorentz and CPT violation, the Standard-Model Extension, is used to ...
V. Alan Kostelecký   +3 more
doaj   +1 more source

Twist-2 relation and sum rule for tensor-polarized parton distribution functions of spin-1 hadrons

open access: yesJournal of High Energy Physics, 2021
Sum rules for structure functions and their twist-2 relations have important roles in constraining their magnitudes and x dependencies and in studying higher-twist effects. The Wandzura-Wilczek (WW) relation and the Burkhardt-Cottingham (BC) sum rule are
S. Kumano, Qin-Tao Song
doaj   +1 more source

Novel corrections to the momentum sum rule for nuclear structure functions

open access: yesPhysics Letters B, 2022
We address novel features of deep inelastic lepton scattering on nuclei at small Bjorken variable xBj. In this regime the lepton-nuclear cross section involves the interference between the standard lepton-quark scattering amplitude for the deep inelastic
Stanley J. Brodsky   +2 more
doaj   +1 more source

Photon–jet correlations in deep-inelastic scattering

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
The reaction $$e + p \rightarrow \gamma + \mathrm{jet} + X$$ e + p → γ + jet + X is studied in QCD at the next-to-leading order. Previous studies on inclusive distributions showed good agreement with ZEUS data.
P. Aurenche, M. Fontannaz
doaj   +1 more source

Collins and Sivers transverse-spin asymmetries in inclusive muoproduction of ρ0 mesons

open access: yesPhysics Letters B, 2023
The production of vector mesons in deep inelastic scattering is an interesting yet scarcely explored channel to study the transverse spin structure of the nucleon and the spin-dependence of fragmentation. The COMPASS collaboration has performed the first
G.D. Alexeev   +191 more
doaj   +1 more source

Transverse Momentum in Semi-Inclusive Polarized Deep Inelastic Scattering and the Spin-Flavor Structure of the Proton [PDF]

open access: yes, 2002
The non-valence spin-flavor structure of the nucleon extracted from semi-inclusive measurements of polarized deep inelastic scattering depends strongly on the transverse momentum of the detected hadrons which are used to determine the individual ...
B. Adeva   +26 more
core   +2 more sources

Perspectives of Semi-Inclusive Deep-Inelastic Scattering [PDF]

open access: yesEPJ Web of Conferences
This contribution highlights some topics addressed by current and future experiments in Semi-Inclusive Deep-Inelastic Scattering. We concentrate on the programs at 12 and 22 GeV at Jefferson Lab using the CLAS detector, and at the future Electron-Ion ...
Vossen Anselm
doaj   +1 more source

Test of the TMD gluon density in a proton with the longitudinal structure function FL(x,Q2)

open access: yesPhysics Letters B, 2023
We investigate the dependence of the deep inelastic proton structure function FL(x,Q2) on different forms of the transverse momentum dependent (TMD, or unintegrated) gluon distribution.
A.V. Lipatov   +2 more
doaj   +1 more source

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